@tchambers @ricmac @rabble @newsmast @PixelFed @julian or login with nostr (nos2x / nip07). Delta chat has a interesting way to do onboarding / create ( https://delta.chat/en/2023-12-13-chatmail ), and use a private certificate to access instance. Public key can be the account, but limited / read only and with possibility of alias. Validated accounts, by nostr or email, can be full. https://keyoxide.org can help with that, also.